-make dgl show # of watchers
-configurable environment variables for when the game is launched
-configurable stuff: allowed chars in usernames,
 allow char stripping, ...

- Flags for operators/staff/admins or (optionally) user-bans.

- Localization of variables, code clean up

- Use /var/run/nologin and/or dgl-specific nologin file

- Honor window size changes (currently the player has to relogin if window
  size changes)

- A way (config file or compile time) to disable things like registration or
  mail